Italian word ghiaccio comes from Proto-Indo-European *gʷl̥-, and later Latin glacies ((figuratively) hardness. Ice.)
*gʷl̥- (Proto-Indo-European)
glacies (Latin)
(figuratively) hardness. Ice.
*glacia (Vulgar Latin)
*glacia (Latin)
(Vulgar Latin) ice.
ghiaccia (Italian)
(archaic) ice. (rare, foods) icing, frosting.
ghiaccio (Italian)
Ice.